Buffing



June 10, 1952 B. P. SAX 2,599,785

BUFF'ING Filed Sept. 20, 1949 IN V EN TOR. .5622 1? ax I BY I I E w r v QZ'gs Patented June 10, 1952 Beli--PI=Shi1i,-Cliioagb; 111., as ignon to Automatic;

Buff Company; Chicago, Ill.,;- a corporation ofi Illinois? ApplieatioflS'epteniliefm), 1939; Serial Nb: 1 mm Glaims:

This invention? relates an'object the provision-of a buffingwhe'el a'ssexna my and} a: hub mounting for a buttin wheel assembly.

Inthe art of bdfiing' it'has previously b'een-p'ro-L posedto prepare tuning wheel assemblies which comprise a plurality of" centerless bufling section's- This disadvantage is overcome" by' the use of" c'enterless bufi'ing section's" cb'mprisin'g' an annulus or r'in'g'df fabriesupported on" a; metalliecentei less rin'g'in the mann'ei'disclosed'in'tl ie'copending application of Leonard Bi sax" and Thomas H; King'sbu'ry," serial No. 101312, fi ledJune 28; 1949 which" issued as'Pa-tent' No: 2582506; dated Jemia'ry' ,15', 19 52;

and indeed with" buns o'f'any type; is tnat'when replaced. This replacement entail'sclo'sing'down the machine; dismantling thebdtfing wheel, and

individually removing. and oreinser'ting onto the wheel the plurality ofu'biiffi'ri'gr sections that are employed tci' build up the complete" assembly-J is considerable lost time involved; not only in" so far as the operator is concerned; but also so far as those personnel are concerned'whose activity is dependent upon the amount 'of'w'or-k 'ldeing. passed to the bufij'ng wheel.

It is therefore one object of thisinvention-to provide a bufiingwheel,- which may be rapidly assembled'on a machine spindle with a minimumloss of time;

A further object of this invention is the provision of a hub mounting: for a- Yb uffing wheel: assembly whichmay be employed'toghold ap1urality of centerless bufiingrsect'ions in a ssembled relationship: independently of the machine spin dle sothatthebuffingrsectionsrmay be-preassem bled oni the 'hub liy' relatively? lowicosti lalbor" to buflln'g and has for wherea'fteri the" resultinghub: unitand; bulng:v wheel sections? can": be" rapidly; installed: n thgi spindle of a machine whenit becomesaneeessaryi to effecta changer y A still further objectvof thisinvention .13: the: provisionnofi' anzadjustableihub mounting for a: plurality; of; center-less bufiing elementss Whiclp may be adjustedzt'd'accommodate within limits: any desired: number of: buffing :'seictions thereom.-,

A still: further: object? ofthis invention is fth? provision of: a; centerlessf bufiin'g wheelaiassembln' in: whichpthe:circulatiomot anftherethrouglt cam be controlled; y L Y F'untherandiadclitional objects1oi this invention will become apparent-from v the; fo11owing-;speoifi cation; the: accompanying; drawing}. and: the appended claims. i

In accord'ancei: with: one: embodiment. of this invention" therehas been providedza hubimounte: ing which. includes a :pair: ofr telescopically; en gaged tubular: members: havingia pair: of: clampeingu plates or discs: secure'dtto the: opposing; ends thereof: for embracing: aibufling;elemerit-oi 'atplu rali t'y of centerlessl bufilng*sections?therebetweemz. The" flanges are provided with: az'pluralitymofi spaced-1 tongues: Whib'h extend: towardieach: (ithl f on each plate an'd are aidaiptedwosengage tiieirmer; peripheraLedge-o'fi a-lring#sliapedl-centrlessibufii ing section. In accordance 'with onefembddiiment of the inventiom'tlie element engaging tongues on the discs: or: flanges arer-struclirout from the ma-in body portiomof the flange'sthem-r selves; thus part prbvidingiapei tures through; whichair is drawnrintoi'th'e' central pcrtiom t the I buffassembl y i Likewise;thefbuifingfelement or the: plurality" of buflin'gi" section's embraced: between the flange's arer 'provided with= m'eans definingradially extending passageways for? dis? charging air-I through the: bufling; elementduring: operation. V

In certain types: of centerless: buffln'g wheel: assemblies: it hasb'een .foundzdesirable to provide means for" circulating a-i'r" therethrough" in tender to cool the fiabric while itzis beifig used? Grnthb': other hand; itl'is'no't desitedztoi-passi-tooi mucltairf through the buffingi whee1;-. sinceiwi forcedidraf-ti or wind is set up which is 'objiectionable tov the* operator. Accordingly-yin accordance withzone embodiment of this? inventionrmeans have been: provided for controllingithe -'a noi1nt ofrai'r which may be circulated throughitheibuflingi'assemblw duringoperation. Such: means-- may includeza supplemental flange? or disc; secured ins faceetca face relationship with: at'ileast o'ne of the: clampeing' flanges or discsand havingt'anerturesthe'rem:

3 which are adapted to be moved into and out of registry with corresponding apertures in the clamping flange or disc. Thus a simple means has been provided for readily and effectively controlling the amount of ,air which is to be circulated through the completed buffing assembly during operation.

For a more complete understanding of this invention reference will now be made to the drawing, wherein Fig. 1 is a perspective view of a hub mounting constructed in accordance with one embodiment of this invention;

Fig. 2 is a sectional detail view of a buflfing wheel assembly mounted on a spindle and employing the hub mounting shown in Fig. 1; and

Fig. 3 is a detail end viewof the assembly shown in Fig. 2 illustrating the mode of operation of the air control means.

, With particular reference to the drawing, the

h'ub mounting of this invention comprises a pair of flanges III and I2 secured respectively by welding or otherwise to the opposing ends of a pair of telescopically engaged tubular members I4 and I6. The tubular member I4 and the disc III are coaxially arranged and have a central aperture which is substantially the same diameter as a spindle I8 ofa bufling machine (not shown) on which the hub is to be mounted. Thus it will be noted that the flange I8 and the tubular member I4 are capable of being slipped onto the spindle I8 and closely embraced thereby, so that the disc III or the tubular member I4 will not have a tendency to wobble when the spindle is rotated at high speeds.

The tubular member I6 is arranged to slip over the outer surface of the tubular member I4 in closely fitting telescopic engagement. In order to increase the desired frictional resistance between the two telescopic members I4 and I6 there are provided a plurality (preferably three) of longitudinally extending, spaced slits in the side wall of the tubular member I6. These slits 28 define longitudinally extending wall-engaging portions which may be deformed inwardly to a slight extent in order that a firm frictional purchase'will be attained when the tubular member or. sleeve I8 is slip-fitted over the outer surface of the tubular member I4.

In order to prevent that portion of the hub mounting. comprising the member I8 and the flange I2 from wobbling when the hub is mounted on a spindle, the central, spindle-receiving aperture 22 of the flange or disc I2 has substantially the same diameter as the spindle I8. Thus when the putting wheel including the hub mounting is assembled as indicated in Fig. 2, the shoulder 24 integral with the disc I2 and surrounding the central opening 22 closely embraces the spindle I8, thus preventing any wobbling motion during the rotation of the bufling wheel assembly. The shoulder 24 operates effectively in this manner whether the telescoping members I4 and III are almost completely telescoped, as

indicated in Fig. 2, or are extended more fully to accommodate an increased number of buffing sections in a manner not depicted in the drawing.

Each of the discs I8 and I2 is provided with a plurality of circumferentially spaced apertures 26 which serve to permit air to be drawn to a F atoa'is the space embraced between the two discs. The

' a metallic ring 34 having a plurality of radially extending fingers 38 providing a circular channel 38 for receiving a spirally wound bufiing fabric 40 wound in the shape of an annulus and doubled over and supported on a wire 42. The metallic supporting ring 34 of each section is also provided with a plurality of spaced interlocking tongues 44 which extend out of the plane of each ring into the plane of an adjacent ring so that when the sections are clamped together axially they will be firmly maintained in coaxial alignment. Also there are provided notches in each of the sides of the metallic rings 34 which, alone or in cooperation with the notches in an adjacent ring, define radially extending air passageways from a central portion of the hub assembly through the bumng fabric to the outer peripheral portion thereof.

From the foregoing it will be noted that the hub mounting of this invention may be readily employed for rapidly assembling a plurality of centerless bufling sections. In order to accomplish this the telescoping tubular members I4 and I6 are separated from each other and the desired number of centerless buffing sections 32 are arranged concentrically, care being taken that the total axial thickness of the resulting assembly of sections is not greater than the distance which will permit the member I4 from reaching to and within the member I8 when the assembly is clamped between the flanges I0 and I2. After the bufiing sections 32 have been coaxially arranged with their interlocking tab members 44 in position as indicated in Fig. 2, then the flanges I8 and I2 and the corresponding tubular members I4 and I6 arebrought into the centerless assembly from either side with the tubular member I4 being slip-fitted in telescoping relationship into the member I8 and the inner peripheral edges of the flanges I8 and I2 engaging the outer faces of the outside sections of the assembly. The member It by virtue of the slightly deformed wall portions between the slits 28 frictionally engages the tubular member I4, thus preventing accidental separation of the flanges I0 and [2. The flanges I8 and I2 are then pushed together more tightly so that the supporting surfaces 38 of the tongues 28 slide under and engage the inner peripheral edges of the buiflng sections 32 at either end of the assembly in much the same manner as the interlocking tongues 44 of one section engage the next adjacent section.

When this operation has been completed the hub mounting is ready to be mounted on a spindle whenever desired. In order to effect this it is only necessary to remove the nut 48 from the end of the spindle I8 and pass the end of the spindle through the aperture 22, the central aperture in the tubular members I4 and I6, and the central aperture in the clamping disc I8. An abutment 50 is provided on the spindle I8 so that when the nut 48 is drawn up tight, the

flanges lo and l2 will be" firmlyclamped E to-'- gether; It will -be-apparent that the circumfe'r entiallyspaced tongues 28 on the clamping discs IO-and I2, together with the tongue members 44 on-adjacent buffing sections, serve to hold the- It will be apparent that when the hurling-wheelassembly is operated a considerable amount of air is drawn through the apertures 25 into the central hollow portion of the bufling wheel assembly and is forcibly discharged by' centrifugal action through the radially extending passageways formed-by "the notches 46 between the '-bufling-- sections; As has beenindicated above; it' quite often-happensthat the rate of air passed through the 'bufiing wheels is much greater than that" required for the "desired cooling, and,' in fact,"

is-so great that ithampers the activities of the operator of the wheel. adjust the'amount of air'passing'through' the wheel in accordance with this invention there have been provided one or more supplemental discs 52 having-apertures 54 which maybe slipped onto the spindle I8 on'one or both sides of the bufling wheel assembly at the time that'it' is mounted on the spindle. V ably ofthe same size'and shape as the discs Ill and '12 except they may be'made fromfa lighter gaugesheet stock. This is an advantage since the same 'di'e may-be employed for making all The apertures 54 are formed and of'these discs. I spaced to register with the apertures 26 within the flanges I and I2. Also, the supplemental discs 52 are provided with central apertures through which the spindle 13 may extendso that Accordingly, in order to The discs 52 are prefer V the flanges or'discs 52 may be secured in faceto-fa'ce relationship with either orboth of the illustrated in Fig. 3 in which the apertures are shown-inonly'half registry'which 'would'about cut in'half the amount of air which would otherwise-be drawn in through that half of the bufiin'g wheel; Thus'it is possible to regulate'the amount of air to be circulated through the buffing ele-' ment and it may be cut oil substantially"entirely if desired merely by closing the openings in the manner indicated. It will be noted that Fig." 2

shows. the buifing wheel'assembly in which the draw bolt '48 on the spindle 18 has been'loosened to permit the relative movement of the air regu Of course, when this bolt is lating discs 52. drawn down to operating position the" discs 52 will be deformed slightly and drawn up tightly againstthe corresponding discs IQ and !2 so i that the entire assembly rotates as a unit with the spindle;'

It. will thus be apparent that there has been provided a hub mounting for a bufiing wheel assembly particularly useful for the preassembly' of bufiing sections. Such preassembly may be effe'cte'd by relatively inexperienced labor at a point removed from the machine and at a time when'the machine is in operation."Wh'en it becomes .necessary to insert a new bumngas sembly" on the machine it is'only necessary for that the hub mounting maybe expandedforf'con if members to accommodate 'diii'erer'it numbers-"of? the operator tostop the machine'removeth'e bolt- 48 from thespindle, withdraw the old assembly,- andslip a new assembly thereon. Thus'fa' -mini mum of time'is lost during this operation In" experienced labor can be employed for dismantling the worn sections from the hub-mount ing andreassembling the "next section's 'at'alcon;..- venient time'at a pointfremoved frorn thema chine. A further feature ofthe invention is tracted within limits of the telescoping'tubu bufiiiog wheel sections. Furthermore, means have" been provided for" readily controlling the air that may circulate through the louiiiiig "wli Y While a particularembodimerit ofthis inven tionis 'sho'wnabov'e, it"will be understo'o course; that the invention is" not to be lim te thereto"; since many modifications may be in'ad and" it j is contemplated, therefore; by jthe-"ap pended claims, to cover any 's'uchmodific'atio s fall within the true 'spiritand scope "of thisnn venti'on'."

I claim: I g a 1. A hub mounting for a plurality of bufiing' see: tions comprising a first tubular member "adapted to he slipped in coaxial relation over aspindle of uniform cross section; a second tubular member adjustably slip-fitted over the first member'inco 1 axial relationship, a first clamping discs dour tolone endloi said first member, a secondclai'np-f ing disc secured to the opposite end of said second member, said discs and said members having a axial'spindle-receiving aperture of the same cro sectional size adj acent each disc to permit mount-g ing on said spindle without wobbling during op'erf ation; and a plurality of circumferentially spaced bufiing section-supporting tongues struck out to Ward'each other from each disc, having outward 1y. facing circumferentially spaced support sure facesand being radially spaced from" said tubular members and partially defining ventilating'aper tures between said support surfaces of said. tongues and the center'oi each disc, one of said. tubular members being provided with a pluralit of longitudinal slits defining resilient wall mem ber sections for frictionally'engaging the other" tubular member. o r

2. A buffing Wheel assembly comprising .a spin- I dle, a first tubular member fitted around said spindle and coaxial therewith, a second tubular member telescopically slip-fitted over said member and coaxial therewith,a first'flange se cured to one end of said first member having-a central aperture through which said spindle ex tends, a second flange secured to the opposite end of. said second member also having a central a ter-"- ture through which said spindle extends, a plu rality of circumferentially spaced butting element supporting tongues oneach flange radially spaced from said tubular members extending toward the" other flange and presenting outwardly facing bufiing element supporting "surfaces, a nag shaped 'buffing' 'elementhaving an' inner peripli eral ed'ge spaced from said tubular membe'rsana" being supported between "said flanges and,'sai'd" surfaces engaging said inner'edg'es and support ing said buffing element coaxially with said spindle, andmeans on saidspindle for clamping'said flanges together in secure element-supporting re-' lationship, one of said tubular members being" provided with "at least one longitudinalslitprbvidingl a resilient wall-section for frictionally. en;

ga ingthel'otherbf said-tubularmembers' spindle and coaxial therewith, a second tubular member telescopically slip-fitted over said first member in longitudinally adjustable coaxial relationship, a first flange secured to one end of said first member perpendicular to said spindle having a central aperture through which said spindle extends, a second flange parallel to said first flange secured to the opposite end of said second member also having a central aperture through which said spindle extends, a plurality of circumferentially spaced tongues having radially outwardly facing bufiing element-supporting surfaces on each flange extending toward the other flange, a ring-shaped buffing element having radial air passageways supported between said flanges and having an inner peripheral edge engaging said surfaces in spaced relationship to said second member thus providing a hollow portion for said assembly, at least one of said flanges having aperture means in the area between the central aperture and the tongues providing an air inlet to said hollow portion, and means on said spindle for clamping said flanges together in-secure element-supporting relationship.

4. A bufiing wheel assembly comprising a spindle, a pair of spaced bufling element support flanges mounted on said spindle for rotation therewith, a ring-shaped buiflng element mounted between said flanges having an inner peripheral edge spaced from said spindle providing a hollow portion in said assembly, means in said element defining radial air discharge passageways therethrough from said hollow portion, at least one of said flanges having apertured means providing an air intake into said hollow portion, a third flange in face-to-face relationship with said one flange having apertured means adapted to be moved into and out of registry with said first mentioned apertured means for controlling the intake of air into said hollow portion, a plurality of circumferentially spaced tongues on each flange having surfaces engaging said inner peripheral edge and cooperating to hold the bufiing element in coaxial relationship with said spindle, and means on said spindle for clamping said flanges together in secure element-supporting relationship.

5. A bufling wheel assembly comprising a spindle, a pair of spaced bufling element support discs mounted on said spindle for rotation therewith, a plurality of circumferentially spaced tongue members struck out from said discs 'into the space therebetween leaving air intake apertures therein spaced from said spindle, a ring-shaped bufling element mounted between said discs and supported on its inner peripheral edge on the outer surfaces of said tongue members in spaced relationship to said spindle, means in said element defining radial air discharge passageways, an air intake control means including a flange secured in face-to-face relationship to at least one of said discs having apertures adapted upon relative rotation of the flange with respect to said one disc to be moved into and out of registry with said first mentioned apertures for controlling th intake of air into the central portion between said spindle and said bufiing element, and means on said spindle for clamping said discs and said flange together in secure element-supporting relationship.

6. A buifing wheel assembly comprisin a spindle, a pair of spaced buiflng section support discs adjustably mounted in parallel relationship on the opposing ends of a pair of telescopically enengaging th other of said tubular members, a'

gaged tubular members, the inner of said tubular members embracing said spindle in close fitting relationship, a plurality of circumferentially spaced tongue members struck out from the area of each disc adjacent the periphery thereof into the space between the discs providing outwardly facing buffing section support surfaces and providing air intake apertures in each disc radially spaced from said tubular members, a plurality of ring-shaped bufiing sections mounted coaxially between said discs and supported on their inner peripheral edges by said surfaces in radially spaced relationship to said tubular members providin a hollow portion within said assembly, means associated with said sections defining radial air discharge passageways therebetween from said hollow portion, a third disc secured in faceto-face relationship to at least one of said discs having apertures therein adapted upon relative rotation of the third disc with respect to said one disc to be moved into and out of registry with said first mentioned apertures for controlling the intake of air into said hollow portion, and means on said spindle for clamping said discs together in secure section-supporting relationship.

7. The buffing wheel assembly recited in claim 6 wherein the outer telescopically mounted tubular member is slit longitudinally providing resilient wall members for frictionaliy engaging the outer surface of the inner tubular member.

8. The bufflng wheel assembly recited in claim 6 wherein the outer of said tubular members also embraces said spindle in closefltting relationship adjacent that end thereof mounting one of said discs.

9. The buiflng wheel assembly recited in claim 6 having three or more ring-shaped buiflng sections wherein only the sections next adjacent said discs are directly engaged by said tongue surfaces and wherein the remaining sections are maintained in alignment by a plurality of integral tabs extending out of the plane of one ring into the plane of the next ring adjacent the inner peripheral edges thereof.

10. A hub mounting for a plurality of bufl-lng sections comprising a pair of telescopically en-= gaged tubular members one of which is adjustably slip fitted over the other and one of which is provided with at least one longitudinal slit providing a resilient wall section for frictionally engaging the other of said tubular members,- a

pair of clamping plates secured to the opposing ends of said tubular members for embracing said buffing sections therebetween, and a plurality of spaced bufiing section-supporting tongues on each plate extending toward the other plate.

1. A hub mounting for a plurality of bufling sections comprising a pair of telescopically engaged tubular members one of which is adjustably slip-fitted over the other and one of which is provided with at least one longitudinal slit providing a resilient -wall section for frictionally pair of clamping plates secured to the opposing ends of said tubular members for embracing said bufiin sections therebetween and an annularly arranged bufling section-supporting means on .each plate radially spaced from said tubular members and projecting toward the other plate.

12. The hub mounting recited in claim 11 wherein at least one of said plates is formed to provide ventilating apertures in the area between' said supporting means and the thereto secured tubular member.

13. A buffing wheel assembly comprising a spindle, a first tubular member fitted around said spindle and coaxial therewith, a second tubular tends, a second flange secured to the opposite end of said second member also having a central aperture through which said spindle extends, an annularly arranged bufling section-supporting means on each flange radially spaced from said tubular members extending toward said other flange and presenting outwardly facing bufiing element-supporting surfaces, a ring-shaped builing element having an inner peripheral edge spaced from said tubular members and being sup-'- ported between said flanges, said surfaces engaging said inner edges andsupporting said :buffing element coaxially with said spindle, and means on said spindle for clamping said flanges together in secure element-supporting relationi' ship, one of said tubular members being provided with at least one longitudinal slit providing a resilient wall section for frictionally engaging the other of said tubular members.

14. The assembly recited in claim 13 wherein each flange is formed to provide ventilating apertures in the area between the supporting means and tubular member and the thereto secured tubular member.

15. A bufllng wheel assembly comprising a spindle, a first tubular member slip-fitted over said spindle and coaxial therewith, a second tubular member telescopically slip-fitted over said first member in longitudinally adjustable coaxial relationship, a first flange secured to one end of said first member perpendicular to said spindle having a central aperture through which said spindle extends, a second flange parallel to said first flange secured to the opposite end of said second member also having a central aperture through which said spindle extends, an annularly arranged buffing section supporting means on each flange radially spaced from said tubular members extending toward said other flange and presenting outwardly facing buffing'element supporting surfaces, a ring-shaped buffing element having radial air passageways supported between said flanges and having an inner peripheral edge engaging said surfaces in spaced relationship to said second member thus providing a hollow portion for said assembly, at least one of said flanges having aperture means in the area between the central aperture and the annularly arranged means providing an air inlet to said hollow portion, and means on said spindle for clamping said flanges together in secure element-supporting relationship.

BEN P. SAX.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 298,046 Weaver May 6, 1884 1,106,833 Painter Aug. 11, 1914 1,922,108 Myers et al Aug. 15, 1933 2,087,012 Zimmerman July 13, 1937 2,110,494 Zimmerman Mar. 8, 1938 2,136,747 Levoy Nov. 15, 1938 2,140,208 Murray Dec. 13, 1938 2,198,282 Hall Apr, 23, 1940 

